Question

The radius of ⨀B is 4 centimeters and the circumference of ⨀A is 20π centimeters. Find CD

Answer 1

20cm

Explanation:

Given data

Radius= 4cm

Circumference= 20π

Let CD be the diameter of circle A

C= 2πr

20π= 2πr

10= r

Diameter= 2*r

D= 20cm

Hence the diameter CD= 20cm